Combined type-writing and computing machine.



H. HANSON.

COI:IBINED TYPE WRITING AND COMPUTING MACHINE.

APPLICATION FILED FEB. 12, I912.

Patented July 2, 1918.

2 SHEETSSHEET 1.

H. HANSON.

COMBINED TYPE WRITING AND COMPUTING MACHINE.

' APPLICATION FILED FEB. I2. I912. 1,271,311.;

2 SHEETS-SHEET 2.

Patented July 2, 1918.

ED STATES FATE orrio.

HANS HANSON, OF HAJBTFORD, CONNECTICUT, ASSIGNOB, BY MESNE ASSIGNMENTS, T0 UNJDIEBWOOD COMPUTING MACHINE COMPANY, OF NEW YORK, N. Y., A. CORPORA- rron or new roan.

GOMBINED TYPE-WRITENG AND GOMFUTING MACHINE.

Specification of Letters Patent.

racemes July 2, rerea- Application filed February 12, 1912. Serial No. 677,053.

To all whom it may concern:

Be it known that I, HANS Hanson, a

citizen .of the United States, residing in The improvement is especially adapted to combined typewriting and computing machines, and it is illustrated in connection with the UnderwOodl-lahson machine, of this type.

In said Inachineeach dial wheel is pro vided with a rack har whereby it is operated; and upon each rack bar are nine pins. The keys are connected to devices for setting any of the nine pins on any of the rack bars. I

As illustrated in patent to Hanson No.

905,421, dated December 1, 1908, the pins have been mechanically held down Whenever depressed by the keys; and a universal plate has been provided for subsequently forcing upto normal position all the depressed pins. A special key has also been provided for operating this pin-restoring plate, sothat when an error has been made,

- all the pins could be restored and'the numeral keys could then be re-actuated correctly.

Une of the principal features of the present invention is to provide means whereby, whenever any pin on 'a raclrbar is depressed, it will automatically release any previously depressed pin on said her so that in a correction it is not necessary to use an error key. Moreover it is not necessary to re-write the whole number, but only to depress a single numeral lrey in place of the erroneously actuated hey.

ln carrying out this feature of the invention each computation pin, when depressed, is latched down. This is done lay a universal latch, that 'is one that'is adapted lock down any of the pins on any bar. The corn struction is such that the depression of any pin first releases said latch, and hence releases any previously depressed pin; while at conclusion of the depression of the pin, the latch snaps into position to lock the same down.

In machines of this kind, the rack bars are i operated by a general operator after the mimeral keys have been depressed for writing and setting up any given number; and at the conclusion of the movement of said gen-. eral operator, provision is made in the present machine for releasing the latches of all the bars, so that all of the depressed pins may snap back to normal positions.

Other features and advantages will here inafter appear.

In the accompanying drawings,

Figure 1 is a sectional side elevation from front to .rear of an Underwood-Hanson combined typewriting and computing machine.

Fig. 2 is-a plan of certain jacks for determining the order of operation of the computation-pin bars.

Fig. 8 is a part sectional side elevation of "a computation pin-bar, showing one or" the pins as latched down and the others 1n normal positions.

a Fig. l is a part sectional perspective view of a portion of the pin bar, showing-the first pin thereon as latched. down.

Fig. 5 is a perspective view to illustrate the devices connected to the general operator for automatically releasing the de ressed pins at the conclusion of the cycle or movements of the general opera-tor.

Fig. 6 illustrates the preferred form of a computation pin.

Fig. '2 is a sectional side elevation illustrating the pin-releasing movement of the general operator. a

Alphabet keys 1 and numeral lteysfl, provided upon the, forward ends or levers 3, e

are operated to rock bell cranlrs l to swing type bars 5 up against a platen 8. The

platen is mounted upon a carriage 1", which is propelled by aspring barrel 8 and controlled in the usual manner by an escapement wheel 9 and dogs 10, the latter operated by a universal bar 11, which is driven by heels 12 on the type bars. Dial wheels 13 are operated by pinions 14, which mesh with racks 15 formed upon denominational or computation bars 16, one bar for each dial wheel; each ar ca y g a et at comp teloo tion pins 17 ,which are depressible by linkages 18, the latter including rock shafts 19 which'have the usual arms 20 engageable by stems 21 pendent from the numeral keys 2. Depression of any numeral key 2 to operate its type bar causes the depression of the responding linkage 18, whereby one of the pins 17 is depressed in the path of a bar 22 on a general operator 23, which is operated by a crank 24 after all of the desired pins 17 have been set. The crank is fixed upon a rock shaft 25; and the shaft carries a se riage, raises one after another,

mental gear 26, which meshes with an id e pinion 27, the latter meshing with the rack 23 and forming part of the general operator for the computing wheels.

In order to depress or set one of the ins 17, however, its bar 16 must be lifted a ove the other bars; and this is done by a denomination-selecting mechanism, which is conthe order of operation of the bars 16 is re-' versed, the extreme right hand jack 29,

. which is the first to be operated, causing the temporarily.

lifting of the extreme left hand pin carrying bar 16, as usual. The bars 16, with their pins 17, form an itemmegister or indexing device on which digits-are set up Each 'pin may be also. re-

garded as part of an indexing device for its bar 16. y

Each of the bars 16 is rovided with a series of vertical perforatlons 33 to form bearings for the body portions 34 of the.

computation pins 17 and said perforations 33 maybe of square form as illustrated, although the invention is not" limited to such form.

The pins are held up in normal positions by compression springs 35 which bear up under heads 36 secured upon the tops of-the 7 pins and are engageable by the linkages 18.

At their lower ends the springs 35 bear upon a plate 37 which is supported upon the bar in raised position, being fixed to lugs or elevations 38, 39, 40 formed or provided on the bar. The upward or return movement of each pin is limited by a shoulder 41 formed thereon.

Whenever any computation pin 17 is depressed, 'it's shoulder 41 catches undera latch 42, so that the pin is held down. This latch 42 is adapted to latch down any of the pins, and hence is in'the sal latch. Itmay be formed of a strip of sheet metal mounted to slide endwise a ong corletter feeding movements of the carmotion,

nature of a univerthe bar 16 and having a series of perforations 43, one for each of the computation pins 17 A drawspring 44 is connected at one end to the universal latch and at the other end to the part 40 of the bar 16, and tends constantly to move said latch to pinthe perforations 43 are the members which look the pins down; and they are preferably beveled as at 46, and each shoulder 41- has a beveled under side, as at 47, so as to cam the universallatch forwardly during the dey fa'ofzanypin. At the completion of the-"dew istrokeof the pin, the universal latch snaps rearwardly and catches over locking position. The ,septums 45 betweenthe shoulder; 41, as seen at Figs. 3 and 4.

The computation pin :is thereby held down until it can be engaged by the cross bar 22 of the general operator, when it serves as a lug whereby said cross bar advances i said bar 16 and rotates the dial wheel 13.

The perforations 43 in the universal latch 42 are elongated to permit the necessary shiftin of the latch. The latter. may be confined at one end in a slot 48 in the lug 38, and at the other end may work in a bearing 49 in the bottom of lug 39; or the latter may be secured to the bar 16 by means of a pin 50, passing through a slot 51 in the end of said latch bar or member 42. If an error has been made," the operator need not press the error key, but after resetting the typewriter carriage may immediately strike the right numeral key; and the depression thereof will force down another one of the pins 17 and the cam'47 on the latter will force forwardly the latch bar 42, causing the latter to release the previously depressed pin, so'that the latter 1s automatically returned to normal position by its spring 35; and the spring 44 will snap the latch 42' under the newly depressed pin, locking the same down in working position. The pins are shown as fitting loosely in the bearings 33 in the bar, but it will be understood that the fit will be close enough to insure proper operation of the parts. Each pin may, if desired, be formed with a slight projection 52, Fig. 6, to give the latch 42a little additional release to insure that the previously depressed pin shall be released; the edge of the pin sloping both upwardly and downwardly from the top of the projection 52, to form cams, for this purpose.

Upon the completion of the return stroke "of the general operator 23, a one way acting cam 53 thereon engages a wrist 54 provided on an arm 55 and lifts said arm, together with a plate or bar 56 which is carried partly b said arm and partly by a companion arm 5 7 Fig. 5; said arms fixed u on a rock shaft 58 suitably mounted in the ramework. The bar 56 is elevated to the Fig. 7 position during the conclusion of the return stroke of the general operator 23, and lifts up all of bar 42, and said cam portion en ages the forward edge of the slot 61 and orces the latch 42 forwardly to a position to release any pin that-it may be latchiniv down;-

Whereby it is insured that all the films shall be in normal positions at the conclusion of the return stroke of the general operator.-

During the final portion of said return stroke, the Wrist 5 L runs off from the cam 52, and the releasing bar 56drops, and individual springs 62 return the release pins 59 to normal positions. During the next forward stroke of the general operator 23, the cam 53 rotates about its pivot 6t without lifting the releasing bar 56; and a spring 65 then returns cam 53 to normal position.

Variations may be resorted to Within the scope of the invention and portions of the improvements may be used Without others.

Having thus described my invention, I claim:

1. In a computing machine, the combination with a series of numeral keys, com uting Wheels and a traveling carriage, 0 reciprocating bars for rotating said Wheels, a series of pins mounted on each of said bars means enabling said pins to he set by sa-i keys, means for driving said bars to turn said Wheels to an extent determined by the pins set, and means under control of said carriage for enabling a key to modiiiythe setting of the pins on any rack bar.

2. in a computing machine, the combination with series oi computing Wheels, of reciprocating rack bars for rotating said Wheels, a series of pins mounted on each of said liars, a series oi" typewriter numeral keys, means enabling any of said lreys to set any or said pins, and means enabling the setting of one pin to restore another previously set pin on the same bar, said means including a latch on each bar universal to all of the pins thereon, and a shoulder on each pin arranged to move said latch to re: lease any pin latched, said shoulder being formed with a cam surface, so as to allow the released pin to move to released position, said shoulder also having a surface to catch said latch to hold any pin in set position. a i

3. In a computing machine, the combination with a series of numeral keys, computing Wheels and traveling carriage, of reciprocating bars for rotating said Wheels, a

series pins mounted on each or? bars,

means controlled by said earrings for en abling any key to set any pin, and means also controlled by said carriage for enabling any key to release any pin previously set.

i. In a computing'machine, the combination with com utin wheels of rack bars numeral keys, pins settable on said rack bars by said numeral keys for determining how far said rack bars shall be moved to turn said computing wheels, a general operator for driving said rack bars to an extent determined by the pin set, a spring for re turning each pin to normal position, a latch individual to each rack barter holding any pin in set position. means controlled by said general operator zor returning all of said rack bars to normal position, means brought into action when said rack bars reach normal position for releasing all of said latches.

5.,111 a computing machine, nation with numeral keys com wheels, of rack bars for determining n far said computing Wheels shall be turn pins'settable on said rack bars by said keys or determining how each rack bar shall control its computing Wheel, means on each rack bar for releasing the set pins, a general operator for causing said computing Wheels to be rotated as determlned by said rack bars, and means onsaid general 0 erator for operating each releasing means a ter the computing Wheel has been turned.

6. Ina computing machine, the combination with a framework and computing Wheels mounted therein, of rack bars controlling saicl computing Wheels, pins setteble on each rack bar, numeral keys arranged to selectively set said pins to determine how each raclr bar shall control its computing Wheel, a releasmg device on each reel: bar,

a universal bar on. said frame adapted to operate said releasing devices, general operator for causing the computing Wheels to be operated in a manner determined by said I raclz bars, and means on said general operator for operating said universal bar.

7. In a computing machine, the combination With an array of computing Wheels, of an array of reel: are for determining how said computing Wheels shall operate, pins settable on said rack bars for determining how said bars shall control said wheels, a universal latchicommon to all the pins on one bar, a releasing device on each bar, a

general operator, and a universal bar moved by said general'onerator to operate all releasing devices.

in a computing tion with reciprocating winnutation ers and settable p s there .Li'. 1 Wheels shall 1' machine, the combine a settable on each member for determining rack bars, said pins forming a series of rows,

. a universal latch on each rack bar for holding any pin set thereon, a releasin device for each latch, a general operator or said rack bars, and a device for simultaneously operating all said releasing devices, operable by said general operator.

10. In a computing machine, the combination with a series of reciprocating members, of a general operator for said members, pins position, a universal latch for thepins on 7 each member, a universal bar coiiperating with allsaid latches to release the pins, and

a cam on said general operator arranged to move said universal bar to its effective position momentarily after said general operator has returned sa1d members. to their normal position. Y

12. In a combined typewriting and computing machine, the combination with keys operating types, of a traveling carriage controlled b said keys, a, series of reciprocating members driving computing-wheels, an array'of settable pins on each of said members determining how far it shall drive its conrpmting-wheel, means for setting said said carriage, a universal late on each of said members to hold any pin set'by said keys andarranged to release any previously set pin on said member when'any otherp'in is set, a general operator for causin said members to drive said computing whee s, and means controlled by the completed movement of said general operator for releasing every set pin.

13. In a combined typewriting and computing machine, the combination with keys operating ty es, of a traveling carriage controlled by said keys, a series of reciprocating members driving computing wheels, an

array of settable ins on each of said members determinin ow far it shall drive its computin whee means for setting said pins from sai keys in an array selected by said carriage, a universal latch on'each of said members to hold any pin set by said keys and arranged to release any previously set e pin. set thereon, a bar on said general operator for returning said members to their normal- 1 releasin into sal wheels, and means for causm sa1d cam to o crate sa1d releasmg bar on t e repin on said member when any other pin is set, a releasing p111 m each of sa1d arrays operatin said universal latch,a bar common to a of said releasing pins, a general operator for causing said members to carry into the wheels the numbers represented by the pins set, andmeans'controlled by the completed movement of said general opera determining how far it shall drive its comuting wheel, means for setting said pins om said keys in an array selected by said carriage, a universal latch on each of said members to hold any pin set by said keys and arranged to release any previously set pin on sa1d member when any other pin is set,

a releasing pin in each of said arrays operating its universal latch, a general operator for carryin intosaid wheels the numbers represented y the pins set, a bar common to all said releasing pins but normall spaced therefrom, a member pivoted on sai general as's idly by said operator and arranged to rs are carried bar as said num turn stro e'of said operator.

15. In a computing machine, the combina- "tion with computing wheels, of reciprocating bars for turning said computing wheels, a series of digit pins on each bar fordetermining how far said bars shall move, a controller in carried by eachbar, and means control ed by said -pin for holding any of said first-mentioned digit pins in set position H while any bar is moving to control its compins for sa1d keys in an arm selected by puting wheel, said controller pins causing release of the digit pins of its corresponding completed.

'bar after a computlng action of said bar is v16. In a computing machine, the combination with computing wheels of reciprocating bars for turning said computing wheels, a series of di 't 'pinsspring-held in normal inactive positions on each of said bars, a latch for holding any pin in set posltion against the action of its spring, means cooperating Wlth the set pin to move said bar a distance determined by the set pin to turn the computing wheel associated with said bar, and a controller pin on each bar having means thereon to cooperate with the latch on its corresponding bar to release any set pin.-

17 In a computing machine, the combmation with computing wheels, of reciprocating bars for turnin said wheels, a series of digit pins spring-he d in normal inactive-positions on each bar, means for setting any one of said digit pins, a general operator for co-acting with the set pin to drive saidbar a distance determined by said pin to thereb turn the computing wheel associated Wit said bar, a latch for holding any pin in set position against the action of its spring, a controller pin for each reciprocating bar cooperating with the latch on said bar to release any digit pin, and means controlled by said general operator for moving all of said controller pins to thereby release the latches of all of the reciprocating bars.

said bar,

" bars for turning said wheels,

18. In a computing machine, the combination with computing Wheels, of reciprocating bars -tor turning said wheels, a series of digit pins spring-held in normal inactive positions on each bar, means for setting any one of said digit pins, a general operator for coacting with the set pin todrive said bar a distance determined by said pin to thereby turn the computing Wheel associated with a latch for holding any pin in set position against the action of its spring, a controller pin for each reciprocating bar cooperating With the latch on said bar to release any digit pin, means controlled by said general operator for returning all of said reciprocating bars to normal position, and means controlled by said general operator When said reciprocating bars have been returned to position to move all of said controller pins to release said digit pins.

19. in a computing machine, the combina-v tion with numeral Wheels, oi reciprocating a series oi digit pins on each bar for determining the amount of movement thereof, a series of digit keys, means controlled thereby for setting a digit pin on any bar corresponding to the key operated, means enabling any other key to set its digit pin on any bar and replace any previously set pin on a controller pin carried by each reciprocating bar for also releasing any set digit pin on its corresponding bar,

20. computing machine, the combination with computing Wheels, or rack bars for turning said Wheels, a series of set-table digit pins on each reel: bar, means for setting pins on different reel: bars corresponding to digits a number to be computed, means for digit pins so set and movgaging the r "eel; bars to positions determined by -s, a universal latch on. each raci: for holding any pin thereon in set position, means restore all of said rack bars to alined position at the end of a computation, and means brought into action Whe said bars are so alined for moving all i latches to release an\ set pins.

combination with competing head, of actuating mechanism for rnnning numbers said head, a seies pins settable in one on action teminethe of sine direction the corresponding bar and bar; being ating mechanism, and pin means settable in the opposite direction to determine the unsetting'of said pins.

22. The combination with a series of computing Wheels, of a series of denominational members, one for each of said computing wheels,'a series of pins for each of said denominational members, said pins being settable'in one direction to determine the extent, of movement of said denominational members, and a pin for each of said denominational members settable in the opposite to determine the nnsetting of said first-mentioned pins.

23. The combination With a series of computing Wheels, of a series of denominational members, one for each of said computing Wheels, a series of pins for each or said denominational members, said pins being settable in one direction to determine the extent of movement of said denominational members, a pin for each of said denominational members settable in the opposite direction to determine the unset-ting of said first-mentioned pins, and means for actuating said last-mentioned pins after said first-mentioned pins have completed the computing operation for which they were set,

2d. The combination with a series of computing Wheels, of a series of denominational members for determining the actuation of. said computing Wheels, a series of pins for determining the extent of movement of said denominational members, means for setting T said pins, a general operator for driving said denominational members amounts determined by the pins set, a series of unsetting members, one for each of said denominational members, for enabling the onsetting of said pins, and an interponent mechanism interposed between said denominational members and said general operator, so as to be actuated by said general operator and arranged to actuate said unsetting ineinneousiy S32;

Bid

digit keys, and a set of indexing devices arranged in denominational rows, of a set of bars carrying said indexing devices, one bar for each row thereof, each of saidbars individually displaceable to bring the indexing devices thereon out of register with the indexing devices on the remaining bars, a keyreleasable universal index-latching means mounted on each of said bars, a key-operttted bar transverse to said denominational ms, and cause said universal latching means to effect the restoration of any erroneously set indexing devices on the same bar, a letterfeeding carriage controlled by said keys, and means operatively associated with said carriage for displacing saidv bars successively, whereby after any key is depresse and a corresponding indexing device set, the carriage, by reason of its letter-feeding movements, selects the bar of next lower denomination for displacement; said carriage being capable of adjustment in either direction to selectively control the displacement of the denominational bars, to enable any one of said keys to effect the restoration of any erroneously set indexing device in the system.

27. In a combined typewriting and computing machine, the combination with a set of typewriter digit printing keys ranging from one to nine, of a traveling typewriter carriage, denominational members on which the typewriter carriage is adapted to act as a denomination selector, an indexing device associated with each denominational member whereby the digits printed by the typewriter are registered, and means associated to actuate any of said indexing devices traveling typewriter in set position,

with said indexing device whereby if the typewriter carriage is brought back as a denomination selector, any of said digit keys when erated to print in said denomination will re ease the registering of any digit registered in said denomination, so that the typewriter carriage becomes a denomination selector for correction purposes.

28. In a combined typewriting and-computing machine, the combination with .a carriage, nine digit typewriter keys and a set of computation members, of a row of indexing devices on each of said computation members, means whereby upon the setting of any indexing device each computation member automatically unsets every other device on said memd ber, said carriage settable to select a computation member on which the keys will be effective and to concomitantly select a printing point-for said keys, to correct the printing and setting at that point.

29. In a computing machine the combination with computing wheels, oii rack bars for turning said wheels, a series of digit pins on each rack bar, means for setting a pin on any rack bar, means for detainingany pin means for engaging said pins and moving the rack bar to an extent determined by said pin, a device on each rack bar adapted to be alined when said bars are alined, and means cooperating with said alined devices at the completion of a computation for releasing all of said pins.

H NS HANSON.

Witnesses:

FRANK A. COOK, U.. M. BYORKMAN. 

